Revolver



2 Sheets-Sheet 1.

(No Model.)

G. ENVALL.

REVOLVER.

N0. 352,863. Patented NOV. 16, 1886..

INA/6771301 all/ 5 by E714; all,

by hi6 mar-114 "TILE/messes 2 SheetB-Sheet 2'.

(No Model.)

G. ENVALL.

REVOLVER.

Patented Nov 16, 1886.

Inventor GfwsZ-af Er zvoLZZ- 53 71,66 flatorrveys UNITED STATESv PATENT Genres.

I GUSTAF ENVALL, or STOCKHOLM, SWEDEN, ASSIGNOR TO WILLIAM w. T THOMAS, .13., or PORTLAND, MAINE.

REVOLVER.

SPECIFICATION forming part of Letters Patent No. 352,833, dated November 16, 1886. Application filed June 8, 1885. Serial 1 11 167:207. (N model.)

To aZZ whom it may concern:

Be it known that I, GUSTAFENVALL, Major in the Swedish Army, asubject of the King of Sweden, and a resident of Stockholm, Sweden, have invented certain Improvements in Mechanisms of Revolvers, of which the following is r a specification.

In the automatically-eocking revolvers hitherto in use it has been necessary before taking aim to bring them to full-cock with the thumb, as in ordinary pistols, in order to insure a good aim. WVith rapid firing, however, when there is no timefor cocking beforehand, the cooking must be done and the shot fired by a single pull of the forefinger. Under these circumstances the mainspring offers agreat resistance, and the finger having to travel a diswhereby the weapon is cooked, but by which it cannot be fired, and another at the top, whereby the shot is fired by the thumb. This mode ofoperation has the advantage that the revolver is not brought out of position at the very moment of firing.

On the accompanying sheet of drawings, Figure 1 represents a side view of the lock and the rear part of the revolver, with the side plate and cheek taken away, the revolver being safety-cocked. Fig. 2 represents a side view of the lock or the mechanism with theside plate removed, the hammer being brought to the full-cock. Fig. 3 is a plan. Fig.4is a crosssection in front of the hammer a and the spanner a, showing them when brought to the fullcock. The other figures represent details of the mechanism. Fig. 5 represents, viewed from two sides, the pawl 12, by which the revolver-drum is turned. Fig. 6 is a top View and a side view of the catch wj Fig. 7 is the fore part of the undermost arm, a, of the mainspring, viewed from above. Fig. 8 represents a side viewof the hammer a, and Fig. 9afront view of the same. Figs. 10, 11; and l2,representthe movablcparts ofthe hammer removed, viz: Fig. 10, the tongue d; Fig. 11, the lever I), each shown from two sides; and Fig. 12, a front view of the mainspring-link h. Fig. 13 is a front and side view of the spanner proper, n,- and Fig. 14, a side and top view of the arm 19 of the spanner. Fig. 15 is a side view of the trigger 'i, seen from without. Fig. 16 isa section of the same along the line I I of Fig. 15. Fig. 17 is the same seen from above, and Fig.18 the same from the inner side. is a side view of the side plate, and Fig. 20 the same in section along the line H II of Fig. 19.

Similar letters of reference indicate corre-' sponding parts in all the figures.

In this lock mechanism the hammer a is provided with a lever, b, passing through a hole in the hammer and pivoted at c. The shorter arm of this lever is situate below a backwardly-projecting tail of the tongue d.

The longer arm is provided with a tappet, e, projecting from the end of the comb of the cock, and also with a projection, f, extending a little outside the inner rounding of the comb. The hammer is further provided with ashoulder or rounded surface, at the one side. The mainspring-link h, embraced by the top arm, a, of the mainspring, is extended downward.

The trigger z, situated at the top of the butt, is pivoted at k and actuated by the spring I, and kept in position by the downwardly-bent end of the plate m. (Shown by the dotted lines in Fig. 19.)

The spanner a,-pivoted on the pin 0, the arm 12 of which is pivoted thereon, is provided with a stop, 8, which, by encountering a fixed part of the revolver-body it, limits its motion. On the spanner n is the pawl 22, pivoted on its pin a, by which pawl the drum (not shown on the drawings) is turned around. w is a shoulder, which at the full-cock falls in a slot in the drum, thus fixingit. i

w is a catch, which, actuated by a little spring, 3 is pressed into the notch or slit z on the spanner when the hammer is brought to 100 the full-cock.

The mechanism works in the following man- Fig. 19'

ner: In order to cock the hammer, the arm of i the stop 8, and the hammer has been brought to mainspring causes the hammer to fall down.

the spanner is pulled back with the forefinger, (or the middle finger.) whereby the spanner proper, it, turns on the pin 0 untilthe stop 8 encounters the lower edge of the revolverbody, and the catch 00 is pressed into the slit 2. The spanner n is now locked by the catch a: and

the full-cock, as shown in Fig. 2. The pawl D has meanwhile turned the drum the requisite U angle, and the shoulder w of the spanner fixes the drum in the usual manner. Now,a sure-aim being taken. the firing is effected by pressing the triggert' downward by means of thelhumb. The trigger actnates then the lever 12, and this turns the tongue (I from its support against the spanner n, and the upper arm, a, of the On falling, the shoulder g on the hammer presses the catch 00 outof the slit .2 of the spanner a, which becomes free. Vhen the shot has been fired, but not before, the forefinger yields, when the bottom arm, a, of the mainspring, reposing upon the pawl 12, brings back the spanner into its former position. (See Fig. 1.) At the same time the shoulder 12 of the mainspriug-arm a glides along the curved surface 0 of the downwardly-extending part of the mainspring-link h, and presses the hammer to the safety-bend. (Shown in Fig. 1.)

If, after cooking, the shot is not to be fired, the hammer may be let down in .the usual manner with the thumb by pressing in the projection f. The hammer moves then auto matically into the safety position.

I claim as my invention 1. The combination of the stock and hammer of a revolver, with a firing trigger on the top of the stock to be pressed by the thumb, and a spanner-trigger below the hammer to cook the latter, and having a stop, 8, to come into contact with the stock when the hammer is brought to the full-cock, substantially as set forth.

2. The combination of the stock and hammer of a revolver, and the cocking-spanner pivoted to the stock, with a movable tongue, (1, on the hammer, with which the said spanner engages, and a lever, I), also on the hammer, engaging with said movable tongue, as and for the purpose specified.

3. The combination of the stock and hammer of a revolver, and a firing-trigger on top of the stock, with a cocking-spanner below, having a notch, z, and a catch, 00, to engage with and retain the spanner, the said hammer having a shoulder, g, to act on the catch and release the spanner when the revolver is fired, substantially as described.

4. The combination of the hammer of a re volver, having a shoulder, g, at its lower end, with a movable tongue, d, and a lever, I), both carried by the hammer, a firing-trigger pivoted to the stock and engaging with said lever 1), the cocking-spanner a, a catch, x, engaging with the spanner, and a spring, a a, bearing on the hammer and spanner, substan tially as set forth.

In testimony whereofl have signed my name to this specification in the presence of two sub scribing witnesses.

GUSTAF ENVALL. f

Witnesses:

NERE A. ELFWING, FREDRIK L. ENQUIST. 

